In Sorry, Right Number, could Katie be in any way responsible for her husband's death?

How would you explain the vague understanding-the "desperate hope ... trying to be born"-that comes to Katie after she hears her own voice on the phone?

In Sorry, Right Number, why doesn't Bill return to bed after watching the movie?

At first, whom does Katie believe the sobbing caller to be in Sorry, Right Number?

Interpret How would you explain the vague understanding-the "desperate hope ... trying to be born"-that comes to Katie after she hears her own voice on the phone? Support your answer.

Use a graphing utility to graph the polar equation for (a) e = 1, (b) e = 0.5, and (c) e = 1.5. Identify the conic for each equation. $r=\frac{2 e}{1+e \sin \theta}$

If two variables are inversely proportional, what happens to the value of one as the value of the other increases?

After watching the movie, why does Bill not return to bed?

If it is true that all solids and liquids have vapor pressures, then at sufficiently low extern al pressures, every substance should start to boil. In space, there is effectively zero external pressure. Explain why spacecra ft do not just boil away as vapors when placed in orbit.

There are 57 prairie dogs in a small colony. 32 have a black spot, 5 only have a gray spot, and 10 have both a gray and a black spot. A scientist traps the prairie dogs and examines the first one he catches with a black spot. What is the probability that it has a gray spot?

Robotics researchers investigated whether robots could be trained to behave like ants in an ant colony ( Nature , Aug. 2000). Robots were trained and randomly assigned to “colonies” (i.e., groups) consisting of 3, 6, 9, or 12 robots. The robots were assigned the tasks of foraging for “food” and recruiting another robot when they identified a resource-rich area. One goal of the experiment was to compare the mean energy expended (per robot) of the four different sizes of colonies. a. What type of experimental design was employed? b. Identify the treatments and the dependent variable. c. Set up the null and alternative hypotheses of the test. d. The following ANOVA results were reported: F = 7.70, numerator df = 3, denominator df = 56, p-value < .001. Conduct the test at a significance level of

$$\alpha = .05$$

and interpret the result.

State the name of the dominant force between two protons separated by a distance of a.

$$1.0 \times 10 ^ { - 15 } \mathrm { m }$$

. B.

$$1.0 \times 10 ^ { - 14 } \mathrm { m }$$

.

State the purpose of DNA replication:

Use matrices A, B, C, and D. Find each product, sum, or difference.

$$A=\left[\begin{array}{rr}{3} & {4} \\ {6} & {-2} \\ {1} & {0}\end{array}\right] \quad B=\left[\begin{array}{rr}{-3} & {1} \\ {2} & {-4} \\ {-1} & {5}\end{array}\right] \quad C=\left[\begin{array}{rr}{1} & {2} \\ {-3} & {1}\end{array}\right] \quad D=\left[\begin{array}{ll}{5} & {1} \\ {0} & {2}\end{array}\right]$$

3A + 2B